ndt-users list created

[Chris Hawkinson Cenic <>]

Hi Carlos,

I ran into the same issue here at CENIC.

If you edit src/testoptions.c ... go to line 680 ... you will see ...

/* wait(); */

Uncomment this line and rebuild, then resintall...

This fixed that issue for us. I believe Rich is looking into it further.

Thanks,
Chris

Chris Hawkinson
Network Performance Engineer
CENIC


Carlos Vicente wrote:
> Hi Rich and others,
>
> I just installed NDT here at UO.
>
> I'm running with:
>
> /usr/local/sbin/web100srv -a --snaplog --tcpdump -4
>
> The problem is that I'm getting a protocol error when running the S2C
> test (this is from my Ubuntu desktop machine):
>
> # sudo web100clt -4 -l -n netspeed.uoregon.edu
> Testing network path for configuration and performance problems  --
> Using IPv4 address
> Checking for Middleboxes . . . . . . . . . . . . . . . . . .  Done
> checking for firewalls . . . . . . . . . . . . . . . . . . .  Done
> running 10s outbound test (client to server) . . . . .  901.99 Mb/s
> Protocol error!
> S2C throughput test FAILED!
> Protocol error!
>
> This happens with some clients and not with others.  Testing with a
> laptop running MS Vista, using Firefox, I get no errors.
>
> Here are the different versions of things on the server:
>
> RedHat AS 5.3
> Linux kernel 2.6.20-10.3web100smp
> ndt 3.5.0
> web100_userland-1.7
> javac 1.6.0_13
>
> I tried disabling iptables on both the server and the client, but that
> does not fix it.
>
> I can provide a pcap file of a failed test, captured on the client
> machine, in case that helps.
>
> Any help greatly appreciated.
>
> =====================================================================
> Carlos Vicente                  Tel    :  +1(541) 346-1763
> Network Engineer                Fax    :  +1(541) 346-4397
> Information Services            PGP ID :  8623D99C
> 1212 University of Oregon
> Eugene,OR  97403-1205 
>
>
>